Organic electroluminescent material and organic electroluminescent device comprising same
US11778901B2 · kind B2 · utility
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2References
13Claims
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Assignee
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Key dates
| Filing date | Apr 11, 2022 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Apr 11, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6576
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an organic electroluminescent material and organic electroluminescent device thereof. The organic electroluminescent material has the structural formula as shown in formula 1. Compared with a monoamine structure containing an adamantyl group, the diamine structure disclosed in the present invention has higher HOMO energy level and hole mobility, and can exhibit higher efficiency and service life than a monoamine material device. The organic electroluminescent device comprising the organic electroluminescent material has lower driving voltage, and higher luminous efficiency and service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.